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1

Granulometric composition of soil as a factor determining concentration of ions in soil solution

100%
Rutkowska B., Szulc W., Labetowicz J.
Journal of Elementology
|
2005
|
tom 10
|
nr 4 Suppl.1
89-90
2
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
Content available

Effect of fertilizer on soil reaction

75%
Skrastina L., Vucans R.
Zeszyty Problemowe Postępów Nauk Rolniczych
|
1998
|
tom 456
The aim of study was to determine the influence of growing fertilizer rates on soil reaction. Soil samples were taken from experimental plots, where different amounts of NPK fertilizers were applied for perennial grasses within 6 years (1986 - 1992). The experimental design was 12 treatments in 4 replications, and established in sod-gleysolic loamy sand. Potential acidification of soil as a result of fertilization was calculated based on CaCO₃ balance and obtained results validated with the analytical tests of topsoil (0 - 20 cm) and subsoil (20 - 40 cm) reaction before and after experiment. Obtained results showed low performance of data obtained by calculation CaCO₃ balance, thereby using only CaCO₃ balance, it is risky to forecast soil acidification. In spite ofthat the used fertilizer rates changed in the widely ranges between treatments (N₀P₀K₀ - N₃₀₀P₁₂₀K₂₄₀), fertilization had not significant influence on soil reaction.
3
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Advances in ecological modelling of soil properties by self-organizing feature maps of natural environment of Lower Silesia [Poland]

75%
Stankiewicz A., Kosiba P.
Acta Societatis Botanicorum Poloniae
|
2009
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tom 78
|
nr 2
167-174
The paper provides the use of self-organizing feature maps for determination of soil properties in its initial stage of development formed of massive rocks and how SOFM can be used for the study of environmental objects. The study area was Lower Silesia (Poland) overgrown with common, unique and protected vegetation of lichens, bryophytes and vascular plants. The parent rock of the studied soils consists of Miocene volcanites from the middle part of the Sudety Margin Fault. Soil samples were collected from 20 sites. The soil reaction (pH) and concentrations of Cd, Co, Cu, Fe, Mn, Mo, Ni, Pb, S, Ti, Zn in surface soils were analyzed. Statistical analysis was carried out by one-way ANOVA. The SOFM was used to demonstrate the non-linear ordination and visualization of soil properties. The SOFM showed the influence of parent rock on soil chemical properties generated by it. SOFM appeared to be effective and proper/fit for phenomena and processes taking place in natural environment and is useful in ecology and ought to be taken into account as a possible tool of estimation of various plants and their biotopes. The model can be useful as alternative techniques in modelling the ecological complex data, and provide a novel framework for the discovery and forecasting of ecosystem structure and behaviours in response to environmental changes.
4
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The influence of long-term fertilization with slurry, manure and NPK on the soil content of trace elements

75%
Mazur Z., Mazur T.
Journal of Elementology
|
2016
|
tom 21
|
nr 1
Long-term application of fertilizers can change the chemical composition of the soil environment. Our objective has been to determine total amounts of trace elements (Cu, Mn, Zn, Cd and Pb) in the top layer of soil after 34 years of annual applications of organic and mineral fertilizers. The first experiment was set up in 1972 on lessive soil, while the second one was started in 1973 on brown soil. The same crops were grown in both experiments. Bovine manure and slurry were applied in the first experiment, while the other one involved the application of swine manure and slurry. Slurry was applied at two different doses. One dose of slurry was applied together with manure and mineral fertilization in amounts balanced according to nitrogen. The other dose of slurry was determined so that it brought to soil the same amount of organic carbon as introduced with a manure dose. Manure and slurry were also applied in combination with phosphorus and potassium fertilizers in amounts equal half the content of these components used delivered through exclusive mineral fertilization. The total metal content was assessed using the atomic absorption spectrometry method, with prior mineralization in a 1:1 mixture of nitric and chloric acid. The application of fertilizers over many years increased the content of trace elements. The actual effect varied between the analyzed soil types, depending also on the type of fertilizer and the dose of slurry. The average content of Cu, Cd and Pb was 13.8% higher in lessive than in brown soil, while the amount Mn was lower by as much as 32.7%. Among the doses balanced with respect to nitrogen, the effect of manure caused an increase in the Mn, Zn and Ni content in lessive soil, as well as Cu and Pb in brown soil compared to the application of the slurry dose balanced with manure according toorganic carbon. Mineral fertilizers did not increase the content of the analyzed metals as much as manure, with the exception of Cu and Pb in lessive soil and Ni in brown soil.
5
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The influence of mineralogical composition of soil on the consolidation coefficient value

75%
Zablocka K., Lendo-Siwicka M., Wrzesinski G.
Acta Scientiarum Polonorum. Architectura
|
2020
|
tom 19
|
nr 3
6

Theoretical bases for determination of the complex assessment of the work of soil tillage implements

75%
Nugis E.
Bibliotheca Fragmenta Agronomica
|
1997
|
tom 2B
7

Use of HPLC, Py-GCMS, FTIR methods in the studies of the composition of soil dissolved organic matter

63%
Rosa E., Debska B., Banach-Szott M., Tobiasova E.
Polish Journal of Soil Science
|
2015
|
tom 48
|
nr 1
The study has determined the composition of dissolved organic matter in Luvisols, Fluvisols and Histosols using spectroscopic (FTIR) and chromatographic (HPLC and Py-GCMS) methods. It has been found that aliphatic hydrocarbons (linear) containing from 4 to 12 atoms of carbon constitute the dominant group of compounds included in the dissolved organic matter (DOC). The preparations isolated from Histosols and Luvisols demonstrated a higher proportion of hydrophobic fraction with a longer retention time probably containing more compounds with long-chain aliphatic and simple aromatic structure than the DOC of Fluvisols. The differences in infrared spectra are evident particularly in the wave number between 1650–1030 cm⁻¹. The DOC of Histosols is richer in aromatic compounds (range 1620 cm⁻¹) but the DOC of Luvisols and Fluvisols is richer in alkene chains and hydroxyl (OH) and methoxy (OCH₃) groups. The results showed differences in the composition of the DOM across the soils, caused their genesis.
8

The content of total cadmium and its fractions in arable land of the Podlasie province

63%
Lukowski A., Wiater J.
Polish Journal of Soil Science
|
2015
|
tom 48
|
nr 1
The aim of this study was estimation of total cadmium content and its fractional composition in arable soils, depending on their physicochemical properties. The research material consisted of samples taken from arable soil in 81 points within then Podlasie Province. The content of total cadmium in soils and its fractional composition was determined with the BCR method. It was found that the total content of cadmium was typical for uncontaminated soils and ranged from 0.11 to 1.59 mg kg⁻¹. The percentage of acid in the soluble and exchangeable fraction fluctuated at around 10% on average. The reducible fraction comprised about 20% and oxidizable fraction 26%, on average. Most of the cadmium was in the residual fraction. The factors that influenced the fractional composition of cadmium were determined. For the very light and light soils it was mainly the content of magnesium and pH, while for medium soils it was the organic carbon and magnesium content, content of soil fraction <0.02 mm, as well as the percentage of Cd in reducible fraction.
9

Investigating the concentrations of different elements in soil and plant composition from a mining area

63%
Olowoyo J. O., Odiwe A. I., Mkolo N. M., Macheka L.
Polish Journal of Environmental Studies
|
2013
|
tom 22
|
nr 4
Contamination of soils around mines by heavy metals has not yet received the serious attention that it deserves in South Africa. The current study evaluated the concentrations and levels of pollution by trace metals in soils around a Ferro-chromium mine in South Africa. Soil samples were collected from 20 locations in four different directions, namely southwest, southeast, northwest, and northeast of the mine. The soils were analyzed for trace metals concentrations using ICP-MS. The result revealed that soil pH was in the acidic medium with a very low level of soil organic matter. The concentrations of elements from the soil followed the order Al > Fe > Ca > Mg > Cr > Na > Mn > Ni > Zn > V > Cu > Pb > As > Cd. Higher concentrations for all the elements were recorded from the topsoil and also from the southwestern direction, and the differences in the concentrations were significant (p> 0.05). A highly significant positive correlation of Fe and Cr with Ni and with each other (0.42 ≤ r ≥ 0.82) were recorded. The Pi (pollution index) and I-geo (geoaccumulation index) indicated that the soils around the mine were severely contaminated with Cr and Ni. The concentrations of Fe, Cr, and Ni from the soil samples were high enough to cause serious health problems for people living in the area.
10

Composition and properties of soils developed from different parent rocks in the area of Slezanski Landscape Park. Part III. Content of organic carbon and total nitrogen

63%
Kawalko D.
Zeszyty Naukowe Uniwersytetu Przyrodniczego we Wrocławiu. Rolnictwo
|
2006
|
tom 89
11
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
Content available

Using saturation water percentage data to predict mechanical composition of soils

63%
Mbagwu J. S. C., Okafor D. O.
International Agrophysics
|
1995
|
tom 09
|
nr 3
12

Changes in forest rendzinas and Cambisols during three decades

63%
Reintam L.
Polish Journal of Soil Science
|
2000
|
tom 33
|
nr 2
13

Soil mapping at field level by air-dry moisture detection

51%
Perdok U. D., Kroesbergen B., Kurstjens D. A. G.
Bibliotheca Fragmenta Agronomica
|
1997
|
tom 2B
14

The association of plant parasitic nematodes with fruit crops in Poland as related to some soil properties

45%
Szczygiel A., Zepp A.
Fragmenta Faunistica
|
2004
|
tom 47
|
nr 1
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